Boston Marathon logo
BOSTON MARATHON 2025

Grant Walnoha

Bib: 27199•M

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
27:42
Rank: #22060
Start → 5K
27:42 | 8:55/mi
10K· 6.21 mi
55:21
Rank: #21985 (+75)
5K → 10K
27:39 | 8:54/mi
15K· 9.32 mi
1:23:36
Rank: #22154 (-169)
10K → 15K
28:15 | 9:06/mi
20K· 12.43 mi
1:52:22
Rank: #22111 (+43)
15K → 20K
28:46 | 9:16/mi
Half· 13.11 mi
1:58:51
Rank: #22199 (-88)
20K → Half
6:29 | 9:30/mi
25K· 15.53 mi
2:21:52
Rank: #22165 (+34)
Half → 25K
23:01 | 9:30/mi
30K· 18.64 mi
2:52:48
Rank: #22052 (+113)
25K → 30K
30:56 | 9:57/mi
20M
3:06:25
Rank: #21962 (+90)
30K → 20M
13:37 | 10:01/mi
21M
3:16:56
Rank: #21836 (+126)
20M → 21M
10:31 | 10:31/mi
35K· 21.75 mi
3:23:58
Rank: #21761 (+75)
21M → 35K
7:02 | 9:24/mi
23M
3:36:37
Rank: #21676 (+85)
35K → 23M
12:39 | 10:06/mi
24M
3:46:09
Rank: #21593 (+83)
23M → 24M
9:32 | 9:32/mi
40K· 24.85 mi
3:54:28
Rank: #21502 (+91)
24M → 40K
8:19 | 9:44/mi
25.2M
3:58:11
Rank: #21469 (+33)
40K → 25.2M
3:43 | 10:47/mi
Finish· 26.22 mi
4:07:31
Rank: #21402 (+67)
25.2M → Finish
9:20 | 9:10/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:51
Pace9:04 /mi
2nd Half
Distance13.11 mi
Time2:08:40
Pace9:49 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:5027:428:5527:42
8:55
-
10K
6.21 mi12:13:2955:218:5427:39
8:54
-0:01
15K
9.32 mi12:41:441:23:368:5828:15
9:06
+0:12
20K
12.43 mi13:10:301:52:229:0328:46
9:16
+0:10
Half
13.11 mi13:16:591:58:519:046:29
9:30
+0:14
25K
15.53 mi13:40:002:21:529:0823:01
9:30
0:00
30K
18.64 mi14:10:562:52:489:1630:56
9:57
+0:27
20M
20.00 mi14:24:333:06:259:1913:37
10:01
+0:04
21M
21.00 mi14:35:043:16:569:2310:31
10:31
+0:30
35K
21.75 mi14:42:063:23:589:237:02
9:24
-1:07
23M
23.00 mi14:54:453:36:379:2512:39
10:06
+0:42
24M
24.00 mi15:04:173:46:099:259:32
9:32
-0:34
40K
24.85 mi15:12:363:54:289:268:19
9:44
+0:12
25.2M
25.20 mi15:16:193:58:119:273:43
10:47
+1:03
Finish
26.22 mi15:25:394:07:319:279:20
9:10
-1:37

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:54 /mi

Average Pace

9:27 /mi

Slowest Pace

10:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:56

38% of race

Time at Steady Pace

1:23:09

34% of race

Time at Slower Pace

1:11:26

29% of race

Average Pace: 9:26 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:45:5027:428:5527:42
8:55
#22060
10K
6.21 mi12:13:2955:218:5427:39
8:54
#21985
15K
9.32 mi12:41:441:23:368:5828:15
9:06
#22154
20K
12.43 mi13:10:301:52:229:0328:46
9:16
#22111
Half
13.11 mi13:16:591:58:519:046:29
9:30
#22199
25K
15.53 mi13:40:002:21:529:0823:01
9:30
#22165
30K
18.64 mi14:10:562:52:489:1630:56
9:57
#22052
20M
20.00 mi14:24:333:06:259:1913:37
10:01
#21962
21M
21.00 mi14:35:043:16:569:2310:31
10:31
#21836
35K
21.75 mi14:42:063:23:589:237:02
9:24
#21761
23M
23.00 mi14:54:453:36:379:2512:39
10:06
#21676
24M
24.00 mi15:04:173:46:099:259:32
9:32
#21593
40K
24.85 mi15:12:363:54:289:268:19
9:44
#21502
25.2M
25.20 mi15:16:193:58:119:273:43
10:47
#21469
Finish
26.22 mi15:25:394:07:319:279:20
9:10
#21402
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22060133371333722424(Top 79%)13576(Top 84%)13576(Top 241%)
10K6.21 mi3.10 mi21985+7513323+1413323+1421918(Top 77%)13304(Top 83%)13304(Top 236%)
15K9.32 mi3.11 mi22154-16913417-9413417-9422424(Top 79%)13576(Top 84%)13576(Top 241%)
20K12.43 mi3.11 mi22111+4313392+2513392+2522115(Top 78%)13408(Top 83%)13408(Top 238%)
Half13.11 mi0.68 mi22199-8813431-3913431-3923553(Top 83%)14030(Top 87%)14030(Top 249%)
25K15.53 mi2.42 mi22165+3413414+1713414+1721829(Top 77%)13212(Top 82%)13212(Top 234%)
30K18.64 mi3.11 mi22052+11313342+7213342+7221468(Top 76%)12925(Top 80%)12925(Top 229%)
20M20.00 mi1.36 mi21962+9013290+5213290+5221005(Top 74%)12592(Top 78%)12592(Top 223%)
21M21.00 mi1.00 mi21836+12613206+8413206+8420059(Top 71%)12068(Top 75%)12068(Top 214%)
35K21.75 mi0.75 mi21761+7513155+5113155+5119942(Top 70%)11947(Top 74%)11947(Top 212%)
23M23.00 mi1.25 mi21676+8513086+6913086+6920819(Top 73%)12308(Top 76%)12308(Top 218%)
24M24.00 mi1.00 mi21593+8313032+5413032+5419733(Top 69%)11743(Top 73%)11743(Top 208%)
40K24.85 mi0.85 mi21502+9112971+6112971+6119572(Top 69%)11598(Top 72%)11598(Top 206%)
25.2M25.20 mi0.35 mi21469+3312949+2212949+2219952(Top 70%)11774(Top 73%)11774(Top 209%)
Finish26.22 mi1.02 mi21402+6712902+4712902+4719772(Top 70%)11704(Top 73%)11704(Top 207%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

22424

Males

13576

M18-39

13576

5K→10K

3.1 - 6.2 mi

Top 77%
×5stories
+79ft-138ft

Overall

21918

Males

13304

M18-39

13304

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

22424

Males

13576

M18-39

13576

15K→20K

9.3 - 12.4 mi

Top 78%
×5stories
+106ft-86ft

Overall

22115

Males

13408

M18-39

13408

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

23553

Males

14030

M18-39

14030

Half→25K

13.1 - 15.5 mi

Top 77%
×4stories
+66ft-88ft

Overall

21829

Males

13212

M18-39

13212

25K→30K

15.5 - 18.6 mi

Top 76%
×9stories
+181ft-148ft

Overall

21468

Males

12925

M18-39

12925

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

21005

Males

12592

M18-39

12592

20M→21M

20.0 - 21.0 mi

Top 71%
×8stories
+106ft-24ft

Overall

20059

Males

12068

M18-39

12068

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

19942

Males

11947

M18-39

11947

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

20819

Males

12308

M18-39

12308

23M→24M

23.0 - 24.0 mi

Top 69%
×6stories
+12ft-82ft

Overall

19733

Males

11743

M18-39

11743

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19572

Males

11598

M18-39

11598

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19952

Males

11774

M18-39

11774

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

19772

Males

11704

M18-39

11704

Passing Analysis

Category:
Athletes Passed
1869
Passed By
1211
Net Change
+658
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22060
5K → 10K298223+75#22060#21985
10K → 15K136305-169#21985#22154
15K → 20K206163+43#22154#22111
20K → Half13101-88#22111#22199
Half → 25K157123+34#22199#22165
25K → 30K241128+113#22165#22052
30K → 20M13141+90#22052#21962
20M → 21M15024+126#21962#21836
21M → 35K8813+75#21836#21761
35K → 23M11732+85#21761#21676
23M → 24M9613+83#21676#21593
24M → 40K10312+91#21593#21502
40K → 25.2M4411+33#21502#21469
25.2M → Finish8922+67#21469#21402
TOTALS18691211+658
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing